Status: UPDATED | Advisory ID: CVE-2026-88920
| CVE | CVE-2026-88920 |
| CVSS Score / Version | 9.8 (Critical) / CVSS v3.1 |
| Updated | 2026-10-02 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | Apache wss4j and Apache Software Foundation Apache WSS4J |
| Classified as | CWE-287 (Improper Authentication) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Apache | wss4j | ||
| Apache Software Foundation | Apache WSS4J |
| Subsystems | General OT |
| Sectors | Multiple |
An authentication bypass in the DOM security processor in Apache WSS4J allows unauthenticated remote attackers to forge authenticated SOAP messages via a crafted unsigned SAML sender-vouches assertion containing an attacker-controlled key.
Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue. (NVD)
Monitor Apache's and Apache Software Foundation's web pages for any future patch releases. See vendor advisory link below.